┌1A. | PistilPistil: The female reproductive part of a flower.
late flowers confined to two rows ± embedded in the spadixSpadix: A spike of minute flowers closely arranged around a fleshy axis and typically enclosed in a spathe.
; inflorescence erect at anthesisAnthesis: The period during which pollen is presented and/or the stigma is receptive.
.. 2
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│ | ┌2A. | Plants with rhizome creeping and rooting; leaf blades linearLinear:
-lanceolateLanceolate:
with prominently raised marginal veinVein: Venation types: A. midrib; B. primary lateral veins; C. interprimaray veins; D. secondary veins; E. collective veins; F. tertiary veins; G. basal ribs; H. basal veins.
s; pistilPistil: The female reproductive part of a flower.
late flower zone with a few vermiform staminodeStaminode: A sterile or abortive stamen, frequently resembling a stamen without its anther.
s at base. Lowlands, Kalimantan Barat .. 📌Aridarum minimum
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│ | └2B. | Leaf blades broadly ellipticElliptic:
, primary lateral veinVein: Venation types: A. midrib; B. primary lateral veins; C. interprimaray veins; D. secondary veins; E. collective veins; F. tertiary veins; G. basal ribs; H. basal veins.
s prominently raised on both surfaces of blade; erect; pistilPistil: The female reproductive part of a flower.
late flower zone with a few squat rhomboidRhomboid:
al staminodeStaminode: A sterile or abortive stamen, frequently resembling a stamen without its anther.
s at the base. Higlands, Kapit, Sarawak .. 📌Aridarum ashtonii
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├1B. | PistilPistil: The female reproductive part of a flower.
late flowers in several rows not embedded in the spadixSpadix: A spike of minute flowers closely arranged around a fleshy axis and typically enclosed in a spathe.
; inflorescence nodding at anthesisAnthesis: The period during which pollen is presented and/or the stigma is receptive.
.. 3
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│ | ┌3A. | PistilPistil: The female reproductive part of a flower.
late and staminate flower zones separated by a naked interstice equalling the staminate flower zone in length; staminodeStaminode: A sterile or abortive stamen, frequently resembling a stamen without its anther.
s few, cylindric-clavateClavate: Club-shaped; thicker at the apex than at the base.
, at base of staminate flower zone; stamenStamen: The pollen-producing reproductive organ of a flower.
s and appendixAppendix: Sterile appendage at the end of a spadix.
staminodeStaminode: A sterile or abortive stamen, frequently resembling a stamen without its anther.
s verrucate .. 📌Aridarum kazuyae
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│ | ├3B. | PistilPistil: The female reproductive part of a flower.
late and staminate flower zones not separated by a naked interstice; staminodeStaminode: A sterile or abortive stamen, frequently resembling a stamen without its anther.
s at base of staminate zone absent or globose; stamenStamen: The pollen-producing reproductive organ of a flower.
s and appendixAppendix: Sterile appendage at the end of a spadix.
staminodeStaminode: A sterile or abortive stamen, frequently resembling a stamen without its anther.
s smooth .. 4
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│ | │ | ┌4A. | StamenStamen: The pollen-producing reproductive organ of a flower.
connective convex, distal rim rounded, smooth or slightly sulcateSulcate: Furrowed; grooved.
; staminodeStaminode: A sterile or abortive stamen, frequently resembling a stamen without its anther.
s at base of staminate flower zone absent or closely resembling staminate flowers; thecaeThecae: One of the lobes of an anther in which pollen is produced.
horns long, stiff, arching. Kalimantan Timur .. 📌Aridarum orientale
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│ | │ | └4B. | StamenStamen: The pollen-producing reproductive organ of a flower.
connective concave, distal rim serrate-dentate; staminodeStaminode: A sterile or abortive stamen, frequently resembling a stamen without its anther.
s at base of staminate flower zone globose; thecaeThecae: One of the lobes of an anther in which pollen is produced.
horns rather soft, short, straight. C. Sarawak (Kapit) .. 📌Aridarum burttii
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